In the case of a soil cultivation device with multiple harrow tines, the harrow tines are fastened to levers, which are mounted to pivot on tie bars of the supporting frame via carriers. The operating position of the harrow tines is defined by the levers being adjacent to tie bars, and the harrow tines are prestressed into the operating position by springs assigned to them in the form of pneumatic cylinders.

An agricultural implement assembly, which may comprise a support frame and a tine support structure for supporting a plurality of tine members. The assembly may comprise a clamping mechanism operable for securing the tine members to the tine support structure. The clamping mechanism comprises an upper clamping arm, a lower clamping arm and a medial connecting member which are operable to securely hold or otherwise constrain the tine members against or in close proximity to the tine support structure. The clamping mechanism may comprise a tine angled portion engaging component operable to engage an upper surface of the angled end portion of the tine member. The upper and lower clamping arms may comprise at least one upper ridge and at least one lower ridge for engaging in contact with a first portion and a second portion respectively of outward facing surface regions of the tine support structure.

A tilling machine includes a frame having a jump arm frame unit and a plurality of jump arm assemblies supported along a length of the jump arm frame unit such that a lateral gap is defined between each adjacent pair of jump arm assemblies of the plurality of jump arm assemblies. Additionally, the tilling machine includes a plurality of jump arm spacers, with each jump arm spacer being provided in operative association with a clamp unit of a respective jump arm assembly of the plurality of jump arm assemblies to maintain the lateral gap between each adjacent pair of jump arm assemblies.

A tilling machine includes a frame having a jump arm frame unit and a plurality of jump arm assemblies supported along a length of the jump arm frame unit such that a lateral gap is defined between each adjacent pair of jump arm assemblies of the plurality of jump arm assemblies. Additionally, the tilling machine includes a plurality of jump arm spacers, with each jump arm spacer being provided in operative association with a clamp unit of a respective jump arm assembly of the plurality of jump arm assemblies to maintain the lateral gap between each adjacent pair of jump arm assemblies.

A jump arm apparatus for a tilling machine includes a jump arm frame unit having a triangular transverse cross-section and a plurality of jump arms assemblies coupled to the jump arm frame unit. Each jump arm unit includes a jump arm having first and second ends, with the first end coupled to be coupled to the jump arm frame unit via a clamp unit and the second end configured to be coupled to a tilling disc.

A jump arm apparatus for a tilling machine includes a jump arm frame unit having a triangular transverse cross-section and a plurality of jump arms assemblies coupled to the jump arm frame unit. Each jump arm unit includes a jump arm having first and second ends, with the first end coupled to be coupled to the jump arm frame unit via a clamp unit and the second end configured to be coupled to a tilling disc.

A hub bearing assembly for the rotatable mounting of a soil cultivating disc (D) on a support shaft (A) of an agricultural machine, the assembly being provided with a hub bearing unit which in turn is provided with a flanged outer ring carrying two integral outer raceways for respective rows of rolling bodies, a flange fixed to the flanged outer ring for mounting a disc (D), and, for each outer raceway, an inner ring axially adjacent to the other inner ring, both of which can be engaged by the support shaft (A); and a sealing device mounted on a side of the hub bearing assembly opposite the side of the flange, composed of a first sealing stage and a second sealing stage arranged sequentially along the support shaft (A) and housed in respective seats formed directly in the flanged outer ring.

A pivot system for a rotating agricultural tool includes a bearing assembly has an inner bearing race and an outer bearing race. The pivot system also includes a shaft having a first longitudinal end and a second longitudinal end. The shaft has an angled surface extending from the first longitudinal end to the second longitudinal end. The angled surface has a plurality of points of contact. The inner bearing race contacts the plurality of points of contact to enable the bearing assembly to pivot about a transverse axis that extends perpendicularly to the longitudinal axis of the shaft.

A pivot system for a rotating agricultural tool includes a bearing assembly has an inner bearing race and an outer bearing race. The pivot system also includes a shaft having a first longitudinal end and a second longitudinal end. The shaft has an angled surface extending from the first longitudinal end to the second longitudinal end. The angled surface has a plurality of points of contact. The inner bearing race contacts the plurality of points of contact to enable the bearing assembly to pivot about a transverse axis that extends perpendicularly to the longitudinal axis of the shaft.